Stoneworking-machine.



I H. MERCER.

STONEWQRKING MACHINE.

I Patented May 2,9, 1917.

APPLICATION FILED AUG. 15, I910. 1,228,041

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H. H. MERCER. STONEWORKING MACHINE. APPLICATION men AUG-15, I910.

Patentd May 29 ,1917. -SHEET 2.

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H. H. MERCER. STONEWORKING MACHINE. APPLICATION FILED AUG-15. I910- Patented May 29, 1917.

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HENRY H. MERCER, or CLAREMONT, 'ivnw HAMPSHIRE, nssrenon, BY ivrnsnn ASSIGN- IVIENTS, 'ro SULLIVAN MACHINERY COMPANY, or nosron vmssaonosn'rrs, A

CORPORATIGN OF MASSACHUSETTS.

STONEWOBKIN'G-MACHINE.

Specification of Letters Iatent.

Patented May 29, 1917.

' Application filed August 15, 1910. Serial No. 577,237.

To all whom it may concern Be it known that I, HENRY H. MERGER, a citizen of the United States, and a resident of Claremont, in the county of Sullivan and State of New Hampshire, have invented an This invention relates to stone working machines and more particularly to machines of the channeling type, the object of the present invention being to provide a simple but efficient apparatus intended more par-' ticularly, though not exclusively, for cutting the corner of a channel groove which extends under an overlying side wall of a quarry, or for cutting under any other conditions to which its particular construction is suited.

The invention will be best understood by reference to the followingdescription when taken in connection with the accompanying illustration of one specific embodiment there of, while its scope will be more particularly pointed out in the appended claims.

In the drawings:

Figure 1 is a front elevation of a channeL ing machine embodying one form of the invention;

Fig. 2 is a view on a'smaller scale showing a diflerentposition of the truck when em ployed for corner cutting;

Fig. 3 is a plan view showing the channeling machineof Fig. 1 with certain parts removed;

Fig. 4: is a sectional elevation on the line 44: in Fig. 6;

Fig. 5 is an end elevation of the channeling machine shown in Fig. 1;

Fig. 5 is a detail of the adjustable journal box for the feed screw shaft;

Fig. 5 shows the same parts in difierent positions of adjustment;

Fig. 6 is a sectional elevation on an enlarged scale showing the details of the axial brace rod for the standard.

Fig. 7 is an elevation partly in diagram showing one arrangement of the speed change gears; and

Fig. 8 is another view showing another arrangement of the speed change gears.

Referring to the drawings and to the machine shown therein, while the invention may be embodied in machines and devices other than the specific type herein shown,

for the sake of illustration, there is shown one embodiment of the invention in a track chann'eler of a common construction, the same consisting of a main truck or frame 1, mounted upon the truck wheels 2, the latter adapted to travel along the trackway 3 customarily laid along the quarry bottom.

As is usual in this class of devices, the truck is self-propelled by a suitable motor (Fig. 3) such, for example, as the steam or air engine 4 which is mounted upon the truck and adapted to drive the same through appropriate driving mechanism. Herein a common form of driving mechanism is employed as follows: Connected to the. crank shaft 5 of the engine is a beveled driving gear 6 meshing with the gears 7 and 8, the latter being loose upon the countershaft 9, but'adapted either oneto be clutched thereto by the sliding clutch members 10 and 11 respectively. The latter are moved simultaneously by the slide rod 12 and lever 13, so that either the gear 7 'or. the gear 8 may be clutched at will to drive the 'countershaft 9 and therefore turn the latter in either direction. The countershaft 9 carries the pinion 14 which through intermediate gearing, to

be more fully described, turns a gear 15 seend of the truck upon the trunnion bar 21.

Any desired form or' construction of channeling tool or motor maybe employed, but herein there is illustrated a common form of air channeling engine 22 having rigidlysecured thereto cross head guides 23,

the two constituting a sliding frame adjust able lengthwise of the standard as is customary. through the medium of the feed screw 24. Any suitable means may be employed to turn the feed screw, but herein the chan neler is shown equipped with gears 25 and 26 (Fig. 3) loose on the truck driving shaft 16 and-driven in opposite directions by engagement with gears 7 and 8, respectively. These gears may be separately clutched'to or unclutched from a sleeved beveled gear 27 meshing with the beveled gear 28, the latter connected to drive the inclined feed screw shaft 29. The latter has a telescopic connection which latter is also universally jointed to the beveled driving pinion 29 at the top of the standard, such pinion driving an inter-meshing gear 30 which is connected to the feed screw.

To the piston rod 30 of the engine is secured the cross head 31 adapted to slide in the cross head guide 23 and having attached thereto the tool or tools 32 constituting the channeling gang.

The described form of cliannele'r may be employed in the usual way in cutting an ordinary channel groove. That is to say the standard may be clamped in fixed position on the truck (as for example the position shown in Fig. l, but without the connections to the rails therein shown) one or more of the customary brace members being employed to hold the standard rigid.

When it is desired to cut the corner, however, the brace member or members are removed and the standard 19, which has a pivotal connection to the bracket, 20, is loosened so as to be free to turn about such pivotal connection. The truck is then arranged on the trackway with relation to the quarry in some such position as is represented in 7 Figs. 1 and 2, and there is then connected to some part of the tool carrier or standard 19, preferably near the upper part of the standard as at 33, a link 34:, or other suitable attachment member, the opposite end of which has jointed connection to some point fixed relatively to the truck or having a movement different from that of the truck.

lVith the parts thus connected the truck driving motor can be thrown into connection with the truck driving mechanism by means of the lever 13 to advance the truck just as in traversing the same for cutting the usual channel groove. The truck then moves in toward the overhanging wall of the quarry from the position shown in Fig. l to the position shown in Fig. 2, carrying the pivotal support of the standard with it. The upper end of the standard, however, being held back relatively to the pivotal point causes the tool gang to swing or move from the position shown in Fig. 1 to that shown in Fig. 2, the cutting edges describing a path which may be that indicated in'Fig. 2 and suitable for cutting the corner. The top of the standard swings back during this movement to the inclined position shown in Fig. 2 so that the truck is permitted to move close in under the overhanging side wall and secure the full benefit of the forward reach of the gang.

lVhen the inward, extreme limit of movement has been reached, the truck driving mechanism can be reversed to swing the standard back to the position shown in Fig. 1, this cycle of movement being repeated again and again and the tool being fed slowly forward by means of the feed screw until the required depth of out has been reached.

Referring now to the details of the connections referred to, while the link 34 might be attached directly to some extraneous point, such for example as the rail clamp 35, it is preferably connected to some point relatively fixed or having a movement relative to that of the point of pivotal support of the standard, through means which somewhat reduce the swinging movement of the standard relatively to the reciprocating movement of the truck and also preferably through means which permit some adjustment of this swinging movement. Herein the link 3i has connection to a lever arm 36 pivoted at 37 upon a bracket 38 carried at the end of the truck. To the lever 36 at a point more remote from the pivot 37 than the connection of the link 3% thereto is jointed a second link 38, the latter having a jointed connection at 39 to the fixed rail clamp 35. The result of this compound lever arrangement when adjusted in the manner shown is that the standard is subjected to a somewhat reduced and slower swinging movement, and

the curved path described by the cutting tools is flatter, than if the link 34: were connected directly to the rail clamp 35.

This also provides means for varying the swinging movement at will, there being provided for this purpose a series of perforations %0 in the lever 36 so that the link 34 may be connected to any of them at will and therefore adj ustably connected at a different radial distance from the pivotal point 37 of the lever.

WVhile it is convenient to utilize the truck driving mechanism itself for swinging or moving the tools for corner cutting as well as to move the truck for cutting in the open,

the speed of truck travel which is appropriate for cutting the ordinary channel groove is somewhat too great for best results where the same truck movement is employed to swing the tool for corner cutting. driving mechanism herein, is preferably employed in corner cutting for moving the pivotal support of the standard, there is also preferably employed herein speed reducing mechanism whereby the reciprocatory travel of the truck under such circumstances can be made to take place at a less rate of speed than the travel of the truck when cutting in the open. 7

While the truck LOO In the embodiment herein disclosed such a slow movement of the truck is secured as follows: The gear 15 on the truck driving shaft is driven from the counter-shaft 9 through a gear 41 (Fig. 3), the latter being fast on the shaft 9, and meshing with the gear 42 mounted on the stud shaft 43. The gear 42 has fixed at the side thereof a smaller gear 44 which meshes with and drives the gear 15. This speed reduction arrangement is represented in Fig. 7. The stud shaft 43 is clamped in a slot'in the lug or bracket 45 carried by the main truck frame. When it is desired to drive the truck at the higher speed required for cutting the channel groove in the open, the gears 42 and 44 which are fixedly secured upon the same sleeve, are removed from the stud and the latter clamped in the other end of the slot, as represented in Fig. 8. The gears are then reversed and replaced upon the stud, that is to say, with the smaller gear 44 in the plane of the gear 41 but out of mesh therewith, and the larger gear 42 in the plane of the gears 14 and 15. The second position of the stud shaft is so selected that the larger gear 42 meshes with both the gears 14 and 15, driving the latter from the former at a relatively high rate of speed. The provision of the slot permits the use of gears of various sizes so that the speed of the truck movement may be changed to suit the peculiar requirements of any case.

It is frequently desirable to cut a corner or perform the tool swinging movement with the standard and tools tipped back at an angle to the vertical, such as is represented by the dotted line in Fig. 5. The illustrated machine is therefore equipped not only with the usual appliances for adjusting the standard to cut an oblique channel groove in the open, but also for adjusting the plane of swinging movement so that the groove which is initially cut with the standard clamped to a fixed oblique position can be completed by the combined swinging and cutting move ment of the tool in the same oblique plane.

Referring to Fig. 6 the standard 19 is carried upon the cone-shaped bearing sleeve 46 (see Fig. 6) which in turn passes through the split clamping bracket 20, and is pro vided at its outer end with threads which are engaged by the split clamping nut 47. The fixed axial brace rod 48 passes through the center of the sleeve 46.

When it is desired to swing the tool, the nut 47 is loosened, freeing the standard on its cone bearing and the bolt 49 for the bearing block 20 is tightened to hold the sleeve 46 fast. When it is desired to hold the standard fixed against swinging, the bolt 42) is loosened and the nut 47 tightened, so as to draw the tapered Walls of the sleeve 46 tightly in against the bushing 50 the latter being fixed in the standard.

The rear end of the axial brace rod 48 '(see Figs. 3, 4 and 6) is held fast by means of an eye-bolt 51, the shank of which is clamped fast in an arc-shaped slot 52 formed in the upright bracket 58, the latter bolted to a part of the frame. The eye-bolt does not engage the rod 48 directly but contacts with a cap piece 54 fitting the outside of the rod and drawing the latter into a curved seat 55, which has the plate or foot 56 resting against the bracket 53. As the standard is adjustably tipped backward over the truck for cutting at different angles, the eye-bolt may be adjusted to different positions verticallyv along the slot 52 to allow the brace rod 48 to assume a new position, while maintain ing the same relation to the standard. The slot 52 may be of any desired length, but as shown in the drawings, it will permit angle cutting within limits commonly employed. 1

Connecting the upper end of the stand ard and the outer end of the brace rod 48 is the rearwardly extending angle brace rod 57 telescopically adjustable to permit the adjustment of the standard to different angles. This brace rod is connected to the axial brace rod by means which permit the swinging or rocking movement of the stand ard in any position of adjustment. Herein such means comprise the sleeve coupling member 58 to a lug 58 on which the lower end of the brace rod is secured. This coupling is cut away near its center so as to straddle the cap-piece 54, the seat 55, and the eye-bolt 51 and is so arranged that it is free to turn upon the brace'rod offering therefore no obstruction to the free swinging movement of the standard while at all times fulfilling its function of a, rearward brace therefor, and holding the standard rigid.

The connections of the standard to the rail clamp may also be adjusted to suit an inclined adjustment of the standard by the following means. The lever supporting bracket 38 (see Figs. 1, 2 and 5) is pivotally attached to the truck by means of the stud 59, being adjustably clamped in fixed posi tion to the truck by means of the clamping bolt 60 which passes through an arc-shaped slot 61 of the bracket. By loosening the bolt'60 the bracket may be swung about the pivot 59 so that the lever 36 will assume the same inclination as the standard in any adjusted position of the latter.

Tilting adjustment of the lever is provided for at the'rail clamp 35 by means of a swivel connection 62 between the rail clamp and the joint 39. It will therefore be seen that the swinging movement of the tool can be secured not only in the upright position of the standard, but in any inclined position thereof to which it may be adjusted. When the standard is adjustably.

tilted, the box 63 (Fig. 3), which carries the beveled gear 28 and the feed screw shaft 29 is also adjusted, being adjustable about the axis of the truck driving shaft 16 and being adapted to be clamped in any position of adjustment in the segmental clamping bracket 6%. It will, therefore, be seen that the power-actuated feed of the tools can be maintained both during the swinging movement of the tools and the fixed position of the standard. It will also be seen that the feeding movement of the tools can be maintained at a constant rate, while the movement of the truck or the swinging movement of the tool can be varied at will by means of the change gears 4:2 and 4.4. or by the substitution of differently dimensioned gears therefor.

l/Vhile ordinarily the friction of the com mon truck wheels upon the track will be sufficient to move the truck, for cases where there are slippery rails or a slight inclination to the track'some or all of the truck wheels may be provided, if desired, with the gear teeth which mesh with teeth out upon the face of the underlying rails.

It will be obvious that the invention herein as to its broad features is notlimited to embodiment in track channelers or in channeling machines of any specific type, nor is it limited for all purposes to the connection of the tool to a point extraneous to the truck or other movable support employed.

While there is herein shown and described for purposes of illustration one specific embodiment, it is to be further understood that the latter is not limited to the details of construction herein shown nor to the application of'the invention herein illustrated, nor to the specific form of machine to which the same is shown as applied, but that extensive deviations may be made therefrom without departing from the spirit of the invention.

Claims V 1. In a track channeler the combination with a truck, truck driving mechanism, a standard, a channeling tool mounted on said standard, means for connecting said standaid to an extraneous point while operating said truck driving mechanism thereby swinging the cutting tool, and means for adjustlng said standard to secure swlnging movement in different planes.

2. In a track channeler the combination with a truck, truck driving mechanism, a tool, means for swinging the tool by movement of the truck and means to adjust the frame for swinging movement to different inclinations.

3. In a channeler the combination with a tool, a support on which the tool is pivoted, a connection from the tool to an extraneous support, means for reciprocatively moving the support and means for adjusting the inclination of the plane of swinging movement.

t. In a channeling machine the combinamzaon tion with a truck, truck driving mechanism for moving said truck reciprocatively, a channel tool mounted to swing on said truck, a link for connecting said tool to an extraneous point, and means permitting the adjustment of said standard and said link to adjust the plane of swinging movement.

5. In a channeler, the combination with a tool support on which the tool is pivoted, a rearwardly extending brace-rod connected to the support, and means to swing the tool through the movement of the support.

6. In a channeling machine the combination with a support an upright standard pivoted on the support, a tool adapted to swing on said support with said standard, a rearwardly extending brace rod for said standard, and means for reciprocatively moving the support and swinging the tool, said brace rod being mounted for swinging movement with said standard.

7. In a channeler the combination with a support, a standard, a tool, said standard being pivoted on said support for swinging movement, means for reciprocatively moving the support and swinging the tool and a rearwardly extending brace rod adapted to swing with the standard said standard and brace rod being adjustable to different inclinations to adjust the plane of swinging movement.

8. In a stone working machine, the combination with a percussive cutting tool of a tool support on which the tool is mounted for swinging movement, a connection between the tool and a point extraneous to said support, means for causing relative movement between said point and said support to swing the tool and means for adjusting the plane of swinging movement.

9. A channeling machine having a tool, a pivoted standard, a brace rod arranged in the pivotal axis of said standard and an inclined brace rod connected at one end to said axially arranged brace rod and at its other end to the upper end of the standard.

10. A track channeling machine having a swinging standard and rearward bracing means connected to the swinging standard, said standard with its bracing means being adjustable to different positions to adjust the plane of swinging movement.

11. In a channeler the combination with a tool, a support on which the tool is pivoted, means for reciprocatively moving the support and compound lever connections connecting the tool with an extraneous object for swinging the tool through movement of the support.

12. In a channeler the combination with a tool, a support on which the tool is pivoted, means for moving the support and swinging the tool, and means for reducing the swinging movement of'the tool relatively'to the movement of the support.

13. In a track channeler, the combination with a truck, truck driving mechanism, a swinging tool, and means to swing the tool through movement of the truck driving mechanism, said means being adjustable to adjust the swinging movement independent of the movement of the truck.

la. Ina track channeler the combination with a truck, truck driving mechanism, a swinging tool, means to swing the tool through movement of the truck, and reducing means for reducing the swinging movement.

15. In a channeler, the combination with a tool support on which the tool is pivoted, means for reciprocatively moving the support and swinging the tool, and power driven means for feeding the tool.

16. I11 a channeler, the combination with a tool support, power-actuated means for reciprocatively moving the support and swinging the tool and means for feeding the tool from the same power actuated means:

17. In a channeler, the combination with a tool support, power driven means for reciprocatively moving the support and swinging the tool, power-driven means for feeding the tool and means for changing the speed of movement of the support without altering the speed of the tool feed.

18. A channeling machine having a tool, a standard, a truck, a rearward brace rod, a support on which said standard is mounted for swinging movement and a connection to which said brace rod is also attached and having provision for swinging movement with the standard.

19. A channeling machine having a truck, a pivoted standard, an axially arranged brace rod, an inclined brace rod connected at one end to said axially arranged brace rod, and at its upper end to the standard, said standard, axial brace rod and inclined brace rod being adjustable as a unit to adjust the standard to different angular positions.

20. In a channeling machine, the combination with a truck of a standard, a bearing member on which said standard may be freed for swinging movement or to which it may be clamped fixed, a fixed brace rod extending from said bearing member rearwardly, an inclined brace rod having its upper end-secured to the standard, and a connection between the lower end of said inclined brace rod and said first named brace rod permitting said inclined brace rod to turn with the standard relatively to the fixed brace rod.

21. In a channeling machine, the combination with a support, a standard, a pivotal support for said standard about which it is adapted to swing lengthwise the channel groove, a second pivotal support for the standard about which it may be adjusted to different inclinations laterally the channel groove, a rearwardly'extending brace rod an an inclined brace'rod connected 'respectively to the lower and upper ends of said standard, said'brace rods being adjustable with said standard as a unit as the latter is tipped to different angular inclinations.

22. In a channeling machine, the combination with a main support of a standard movably mounted thereon, a reciprocatory percussive channeling tool mounted on the standard, an extraneousobject, a connection between the standard and said object, means for causing a relative movement between the support and said object to cause the tool to sweep through the channel cut during its reciprocatory percussive movement and means providing for the adjustment of the standard to different angular positions.

23. In a channeling machine the combination with the main truck of'a standard pivotally mounted thereon, a reciprocatory percussive channeling tool mounted on said standard, an extraneous object a connection between the standard and the said object, truck driving means for causing movement of the truck relative to the extraneous ob- 'ject to swing the tool through the channel out during its reciprocatory percussive movement, and a pivotal support for the standard adjustable to different angular positions.

24. In a track channeler, the combination with a truck, truck driving mechanism, a reciprocatory channeler tool, a support upon the truck on which the tool is mounted for swinging movement, means to swing the tool through movement of the truck and means providing for adjustment of the tool sup port to different angular positions.

25. In a channeler, the combination with a tool, a support on which the tool is pivoted, a connection between the tool and an extraneous point, means for reciprocatively moving the support, and means providing for the adjustment of the support to tip the tool to different angular positions.

26. In a channeler, the combination with a pivoted'tool support, of means for swinging the tool and its support, a truck and tool feeding mechanism comprising a feed screw on the support, a driving mechanism on the truck and a telescopic driving connection between the driving means and the feed screw.

27. In a channeling machine the combination with a support,.a tool carrier mounted for swinging movement thereon, a tool on said carrier, power driven means for feeding the tool toward or from the work, and means for adjusting the plane of swinging movement.

28. In a channeling machine the combinationvvith a support, a tool carrier mounted thereon for swinging movement, tool feeding devices on the carrier, tool feeding ios devices on the support, and connections betweensaid devices for feeding the tool during the swinging movement.

29. In a channeling machine the combination with a support, a tool carrier having swinging movement thereon, and power driven means for feeding the tool toward or from the work during swinging movement.

30. In a channeling machine the combination with a support, a tool carrier having swinging movement thereon, power driven means for feeding the tool on said carrier, and means for adjusting the plane of swinging movement.

31. In a channeler the combination with a support, a tool mounted for swinging movement relatively to the work, power driven means for producing such swinging movement, power driven means for feeding the tool, and means for varying the speed of swinging movement while maintaining the speed of tool feed constant.

32. In a channeling machine the combination with a support, a tool, means for imparting a swinging movement to the tool relatively to the work, and power-actuated means for feeding the tool.

33. In a channeling machine the combination with a support, a tool, poweractuated means for imparting a swinging movement to the tool relatively to the work, ZLIIC} power-actuated means for feeding the too In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

HENRY H. MERGER.

WVitnesses THOMAS B. BOOTH, ROBERT I-I. KAMMLER.

Copies of this patent may he obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. I 

